A diet low in fermentable oligo-, di-, and monosaccharides and polyols (FODMAPs) has been recommended in patients with irritable bowel syndrome (IBS). In a recent randomized trial, 30 patients with IBS and 8 healthy controls were assigned to 21 days of either a diet low in FODMAPs or a moderate FODMAP Australian (Western) diet. The patients with IBS had significantly lower overall gastrointestinal symptoms scores with improvement in scores for abdominal pain, bloating, flatulence, and dissatisfaction with stool consistency while on a low FODMAP diet as compared with both the moderate FODMAP diet and their usual diet. This study supports use of LOW FODMAP diet for patients with irritable bowel.